Database Updating Problem
Nov 24, 2007
Hai to All
I am preparing a desktop application in Visual Basic 2005 with SQL Server 2005(working with Local Database). Regarding application, my client wants to install the same application in office and also in his laptop to work at home. It means the database is installed into two different locations. If any new records are inserted from multiple tables in desktop, then how can i update the data in the laptop, and vice-versa.
My client wants if he work in his laptop at home and bring back the database in his USB. then how can i update the data in the desktop. Even i want to check whether new records has been added in USB database.
Please give me solution for my problem. If possible, please write a code for me.
Is there any possible solution directly with SQL Server 2005 alone?
I am eagerly waiting for your reply.
Thanks.
Yours
Kashif Chotu
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May 11, 2007
Can someone provide a step by step tutorial for this? I'd like to safely update a database that is used for a website without much or any downtime.
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Jan 30, 2007
I have my first small SQl Server 2005 database developed on my localserver and I have also its equivalent as an online database.I wish to update the local database (using and asp.net interface) andthen to upload the data (at least the amended data, but given thesmall size all data should be no trouble) to the online database.I think replication is the straight answer but I have no experience ofthis and I am wondering what else I might use which might be lesscomplicated. One solution is DTS (using SQL 2000 terms) but i am notsure if I can set this up (1) to overwrite existing tables and (2) notto seemingly remove identity attributes from fields set as identities.I know there are other possibilities but I would be glad of advice asto the likely best method for a small database updated perhaps onceweekly or at less frequent intervals,Best wishes, John Morgan
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Aug 1, 2007
Hi,
How do I insert data that I have collected in a local database onto a table on my online ie hosted database which is on a different server?
At the moment I am just uploading all the data to the hosted DB but this is wasting bandwith as only a small percentage of data is actually selected and used.
I thought that if i used a local DB and then update the table on my hosted DB this would be much more efficient, but I am not sure how to write the SQL code to do this!
Do I do some kind of
INSERT INTO sample_table
SELECT xxx
FROM origanal_table
Or is it more complicated than this?
Thanks
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Jul 1, 2004
I got thrown into a new project that is going to require me to update an SQL server database tables from an Access table on the backend of an Oracle database on another server. At the end of each day the Access dabase will be updated from the Oracle database.
What I need to do, is when the Access database is updated I need to have the table in the SQL database automaticaly updated. When a new record is added to the Access table I need the new record added to the SQL table. When a record is deleted in the Access table I need to keep that record in the SQL table and set a field to a value (such as 0). And when a record is updated in Access, have it updated in SQL.
Needless to say this is a bit out of my area and not sure how to accomplish this.
Any help is greatly appreciated.
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Jul 27, 2006
i have sql 2005 installed on my personal machine, but our server has sql 2000 on it. the structure of my database was made on the server, but i'm not sure how to update the server copy from my local copy. when i try to export my data from my local machine to the server (or import from my local machine to the server), i get pre-execute errors.
roughly every other week, i'll need to be able to update the server version from my local version, so i'm trying to find the most efficient method. what is the best way to update a 2000 database from a 2005 database? it doesn't matter if i append or overwrite, but i do use identity fields. the error i get when trying to use the import/export wizard is:
- Pre-execute (Error)
Messages
Error 0xc0202009: Data Flow Task: An OLE DB error has occurred. Error code: 0x80040E21.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
(SQL Server Import and Export Wizard)
Error 0xc0202025: Data Flow Task: Cannot create an OLE DB accessor. Verify that the column metadata is valid.
(SQL Server Import and Export Wizard)
Error 0xc004701a: Data Flow Task: component "Destination 3 - ReleaseNotes" (202) failed the pre-execute phase and returned error code 0xC0202025.
(SQL Server Import and Export Wizard)
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Mar 7, 2007
Hi All:
Appreciate your efforts in answering queries of so many newbees!I hope to find answering my query..I
have created a logon screen to which i have also given the option of
changing the password ... Now below is the code for updating the new
password given by the user ....Imports System.Data.SqlClient Dim con As New SqlConnection("server=sys2;initial catalog=kris;integrated security=SSPI") Dim cmd As New SqlCommand("select * from u_login", con) Dim dr As SqlDataReader Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load End Sub Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click con.Open() dr = cmd.ExecuteReader While dr.Read() If dr(0) = txtEmail.Text And dr(1) = txtoldpwd.Text Then Dim NewPwdStr As String = txtnewpwd.Text Dim OldPwdStr As String = txtoldpwd.Text Dim sqlstr As String = "Update U_Login set pwd = ('" & NewPwdStr & "') Where pwd = '" & OldPwdStr & "'" Dim cmd1 As New SqlCommand("sqlstr", con) cmd1.ExecuteNonQuery() Response.Write(" Password Changed ... Please login again") End If End While dr.Close() con.Close() End Sub The above code although doesnt
throw any error however it shows a blank screen and doesnt even update
the new password. Can you plz help me understand what could possibly be
wrong in my code n why is that am getting the blank screen. Your help will be highly appreciated!Thanks,Brandy
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May 25, 2005
Im sorry for how simple this question is im.. brand new at this.I am trying to write a program that will take information entered in 4 txt fields on a webform and populate a sql database with them with a submit button.. Eventually its going to be a updateable phone list for my department but for now im just trying to get the submit button to work. More then anything i just need a good resourse to read up on it. Thankyou Adam
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Nov 15, 2003
At present I am working on a school project. the project was installed few months back. database is MSsql server.
Because of some new things i had to change few tables, add few columns and add few tables also. Now My problem is that the school is already having the data which they don't want to be disturbed . So I want My structure and their data.
:confused: :(
Please Help Me.
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Jul 20, 2005
I'm having a difficult time calling UPDATE when my 'WHERE" clause calls ID,which is numeric and the primary key. I found that I can do a SELECT justfine with "WHERE ID".. Is there something special about UPDATE that i'm notgetting? I've searched the internet but it appears that what I'm doingshould work.Any help would be greatly appreciated.if (modcustomer == "relate"){var modid1 = Request.Form ("modid1");var modid2 = Request.Form ("modid2");var relationship = Request.Form ("relationship");var comments = Request.Form("comments");SqlString = "UPDATE Customer SET Relationship = ' " + relationship + " 'WHERE ID = " + modid1;connection.Execute (SqlString);}thanks,Debbie EhrlichReliable Software - Developers of Code Co-op®, Server-less version controlfor distributed teams www.relisoft.com
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May 17, 2006
Can someone please tell me what I am missing... I am trying to update a record with information a user types into a textbox. I am not getting any errors even when in DEBUG mode. But yet the Data is not getting updated.
Any Help would be very much appreciated.
T
CODE:
Protected Sub bUpdateSlsNum_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bUpdateSlsNum.Click
Dim myCommand As SqlCommand
Dim myConnection As SqlConnection
myConnection = New SqlConnection("Server=.SQLEXPRESS;AttachDbFilename=|DataDirectory|CustomerInfo.mdf;Integrated Security=True;User Instance=True")
Dim UpdateCmd As String = "UPDATE CustomerSalesNum SET WorkSheetID=@WorkSheetID, Price=@Price, Freight=@Freight, Setup=@Setup, " _
& "Injection=@Injection, Wheels=@Wheels, Security=@Security, SubTotal=@SubTotal, DocFee=@DocFee, TradeInAllow=@TradeInAllow, TaxAmount=@TaxAmount, SalesTax=@SalesTax, " _
& "TradeLienBal=@TradeLienBal, Other=@Other, PAQuote=@PAQuote, TitleFee=@TitleFee, DownPay=@DownPay, Total=@Total WHERE [WorkSheetID]= '" & "@" & lblRWorkSheetID.Text & "'"
myCommand = New SqlCommand(UpdateCmd, myConnection)
myCommand.Parameters.Add(New SqlParameter("@WorkSheetID", Data.SqlDbType.NVarChar))
myCommand.Parameters("@WorkSheetID").Value = lblRWorkSheetID.Text
myCommand.Parameters.Add(New SqlParameter("@Price", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Price").Value = tbUPPRice.Text
myCommand.Parameters.Add(New SqlParameter("@Freight", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Freight").Value = tbUPFreight.Text
myCommand.Parameters.Add(New SqlParameter("@Setup", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Setup").Value = tbUPSetup.Text
myCommand.Parameters.Add(New SqlParameter("@Injection", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Injection").Value = tbUPInjection.Text
myCommand.Parameters.Add(New SqlParameter("@Wheels", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Wheels").Value = tbUPWheels.Text
myCommand.Parameters.Add(New SqlParameter("@Security", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Security").Value = tbUPFactorySec.Text
myCommand.Parameters.Add(New SqlParameter("@SubTotal", Data.SqlDbType.NVarChar))
myCommand.Parameters("@SubTotal").Value = tbUPSUBT.Text
myCommand.Parameters.Add(New SqlParameter("@DocFee", Data.SqlDbType.NVarChar))
myCommand.Parameters("@DocFee").Value = tbUPDOCFee.Text
myCommand.Parameters.Add(New SqlParameter("@TradeInAllow", Data.SqlDbType.NVarChar))
myCommand.Parameters("@TradeInAllow").Value = tbUPTIA.Text
myCommand.Parameters.Add(New SqlParameter("@TaxAmount", Data.SqlDbType.NVarChar))
myCommand.Parameters("@TaxAmount").Value = tbUPTAX.Text
myCommand.Parameters.Add(New SqlParameter("@SalesTax", Data.SqlDbType.NVarChar))
myCommand.Parameters("@SalesTax").Value = tbUPSALETAX.Text
myCommand.Parameters.Add(New SqlParameter("@TradeLienBal", Data.SqlDbType.NVarChar))
myCommand.Parameters("@TradeLienBal").Value = tbUPTILB.Text
myCommand.Parameters.Add(New SqlParameter("@Other", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Other").Value = tbUPOther.Text
myCommand.Parameters.Add(New SqlParameter("@PAQuote", Data.SqlDbType.NVarChar))
myCommand.Parameters("@PAQuote").Value = tbUPPAQuote.Text
myCommand.Parameters.Add(New SqlParameter("@TitleFee", Data.SqlDbType.NVarChar))
myCommand.Parameters("@TitleFee").Value = tbUPTitle.Text
myCommand.Parameters.Add(New SqlParameter("@DownPay", Data.SqlDbType.NVarChar))
myCommand.Parameters("@DownPay").Value = tbUPDownPay.Text
myCommand.Parameters.Add(New SqlParameter("@Total", Data.SqlDbType.NVarChar))
myCommand.Parameters("@Total").Value = LBLUTOTAL.Text
myCommand.Connection.Open()
Try
myCommand.ExecuteNonQuery()
ShowMessageBox(Me, "ATTENTION: Customer Data has been Updated.")
bUpdateSlsNum.Enabled = False
Catch ex As SqlException
If ex.Number = 2627 Then
ShowMessageBox(Me, "ERROR: A record already exists with " _
& "the same primary key")
Else
ShowMessageBox(Me, "ERROR: Could not add record")
End If
End Try
myCommand.Connection.Close()
MVMain.ActiveViewIndex = -1
End Sub
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Feb 9, 2008
Hi,
I have designed a Contacts application, where I store all the Contacts in a SQL Database.
Now, I am deploying this application using Visual Studio 2005 Setup and Deployment project.
I might need the update the database with additional Columns etc at a later stage.
How, can I update the SQL Database after it has been deployed on a client computer?
Please assist
Thanks
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Mar 21, 2007
This is a weird problem. I added a database to the app_data folder, but when I make updates and then run some reports the updates aren't shown. The database is updated, cause queries show the updates and I inspected the database. The updates however, aren't being reflected when I run the reports.
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Mar 26, 2007
I have a web project created with VS2005 that is connected to a database on an SQL Server. I've created a data diagram on the SQL Server and created a matching dataset in my project. The data diagram has the 'enforce relationship...' and cascade textboxes checked for the table relationships. My dataset has 'both relation and foreign key constraint' checked with the rules all set to cascade. The code creates a table adapter then does the tableadapter.Update. The data gets added to my main table, but not to any of the child tables. Any ideas on what could be causing this?
Thanks,Rhonda
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Mar 28, 2007
I am wondering how some of you update your database once it is already been in use. So take for example you have a few tables and users can enter data into the site. Now suppose you either add tables to the db or you add fields to an existing table. I am using sql express 2005 and just want to copy the db over with the copy website but it would overwrite any data users entered.Is there any easy solutions or suggestions for this.Thanks
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Jan 8, 2008
I am quite new to ASP.net 2.0. I have had plenty of experience using ADO.net in standard windows applications.
In my app I am opening a connection to an SQL database and I am creating a DataTable without a DataSet:
Shared m_cnADONetConnection As New System.Data.SqlClient.SqlConnection
Shared m_daDataAdapter As System.Data.SqlClient.SqlDataAdapter
Shared m_rowPosition As Integer
Shared m_dtContacts As New System.Data.DataTable
I am initializing everything and filling my DataTable when the Page first Loads if it isnt a postback.Protected Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Form1.Load
If Not Page.IsPostBack Then
m_rowPosition = 0
m_cnADONetConnection.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=C:First ASP DatabaseApp_DataMyFirstDatabase.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True"
m_cnADONetConnection.Open()m_daDataAdapter = New System.Data.SqlClient.SqlDataAdapter("Select * From Books", m_cnADONetConnection)m_cbRefillCommand = New System.Data.SqlClient.SqlCommand
m_daDataAdapter.Fill(m_dtContacts)
Me.ShowCurrentRecord()
End IfEnd Sub
The Me.ShowCurrentRecord Sub assigns the values of the current record(row) in the DataTable via (m_rowPosition) to TextBox controls on the form:
I also have record navigation buttons on my form: << < > >> Moving me from record to record (row to row) by incrementing or decrementing m_rowPosition
All is good! I am able navigate the DataTable and the textboxes change their text properties accordingly from record to record.
The only other control on my form is a button which I'm coding its click event to save changes that I made to the current row (record) by changing the values in the textboxes then clicking save.
Here is my code:Protected Sub ButtonSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ButtonSave.Click
If m_dtContacts.Rows.Count <> 0 Then
m_dtContacts.Rows(m_rowPosition).BeginEdit()m_dtContacts.Rows(m_rowPosition)("Title") = TBTitle.Text
m_dtContacts.Rows(m_rowPosition)("Author") = TBAuthor.Textm_dtContacts.Rows(m_rowPosition)("YearPublished") = TBYearPublished.Text
m_dtContacts.Rows(m_rowPosition)("Price") = TBPrice.Textm_dtContacts.Rows(m_rowPosition)("LastReadOn") = TBLastReadOn.Textm_dtContacts.Rows(m_rowPosition)("PageCount") = TBPageCount.Text
m_dtContacts.Rows(m_rowPosition).AcceptChanges()
m_dtContacts.Rows(m_rowPosition).EndEdit()
m_dtContacts.AcceptChanges()
m_daDataAdapter.Update(m_dtContacts)
End Sub
After I click save I can navigate through my records and back to the one I just changed and updated and all is well. The changes were made in the table.
However, when I close the page and exit out of Visual Web Developer and reopen the database: THE CHANGES WERENT UPDATED!!!
This worked all the time in VB2005.net when developing a standard windows app.
Can I use the same approach I was using in my code above or am I missing something.
I have read and searched all over and what I'm thinking is that my UpdateCommand, InsertCommand, DeleteCommand, SelectCommand are empty.
Do I have to do it this way?
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Jan 19, 2004
Hello all
Can any one help me in updateing the dataBase with the updated datset through the DataGrid
i am able to get the updated dataset from the data Grid but i dont know how to update the database with that
kindly help
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Oct 28, 2004
Hi all,
I'm getting an error when updating my database. The connection is fine and the dropdown menu is good also so i think it's the way i've formed my sql string. Here's the line i think i'm having probs with:
SQLString = "UPDATE project_descriptions SET " & _
"lecturer_name = '" & Replace(LecturerName.Text,"'","''") & "'," & _
"project_title = '" & Replace(ProjectTitle.Text,"'","''") & "', " & _
"Project_description = '" & Replace(ProjectDescription.Text,"'","''") & "'," & _
" WHERE project_code = '" & ProjectCode.SelectedItem.Value & "'"
Can anyone rearrange it so i stop getting an error?
Here's my code. if it helps.
<%@ Import Namespace="System.Data.OleDb" %>
<SCRIPT language="VB" runat="server">
Dim DBConnection As OleDbConnection
Dim DBCommand As OleDbCommand
Dim DBReader As OleDbDataReader
Dim SQLString As String
Sub Page_Load
If Not Page.IsPostBack Then
'-- Load drop-down list with item numbers
DBConnection = New OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:finalyearproject2projectallocation.mdb")
DBConnection.Open()
SQLString = "SELECT project_code FROM project_descriptions ORDER BY project_code"
DBCommand = New OleDbCommand(SQLString, DBConnection)
DBReader = DBCommand.ExecuteReader()
ProjectCode.DataSource = DBReader
ProjectCode.DataTextField = "project_code"
ProjectCode.DataValueField = "project_code"
ProjectCode.DataBind()
DBReader.Close()
DBConnection.Close()
End If
End Sub
Sub SelectRecord (Src As Object, Args As EventArgs)
DBConnection = New OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:finalyearproject2projectallocation.mdb")
DBConnection.Open()
SQLString = "SELECT * FROM project_descriptions WHERE " & _
"project_code = '" & ProjectCode.SelectedItem.Value & "'"
DBCommand = New OleDbCommand(SQLString, DBConnection)
DBReader = DBCommand.ExecuteReader()
DBReader.Read()
LecturerName.Text = DBReader("lecturer_name")
ProjectTitle.Text = DBReader("project_title")
ProjectDescription.Text = DBReader("project_description")
DBReader.Close()
DBConnection.Close()
UpdateButton.Visible = True
End Sub
Sub UpdateRecord (Src As Object, Args As EventArgs)
'-- CHECK FOR VALID RECORD ---
Dim ValidRecord As Boolean = True
'-- Check for missing Project Title
If ProjectTitle.Text = "" Then
ProjectTitleMessage.Text = "Missing Project Title"
ValidRecord = False
End If
'-- Check for missing Lecturer Name
If LecturerName.Text = "" Then
LecturerNameMessage.Text = "Missing Lecturer Name"
ValidRecord = False
End If
'-- Check for missing Project Description
If ProjectDescription.Text = "" Then
ProjectDescriptionMessage.Text = "Missing Project Description"
ValidRecord = False
End If
If ValidRecord = True Then
'-- UPDATE A RECORD --
Try
DBConnection = New OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:finalyearproject2projectallocation.mdb")
DBConnection.Open()
SQLString = "UPDATE project_descriptions SET " "lecturer_name = '" & Replace(LecturerName.Text,"'","''") & "'," "project_title = '" & Replace(ProjectTitle.Text,"'","''") & "', " "Project_description = '" & Replace(ProjectDescription.Text,"'","''") & "'," " WHERE project_code = '" & ProjectCode.SelectedItem.Value & "'"
DBCommand = New OleDbCommand(SQLString, DBConnection)
DBCommand.ExecuteNonQuery
DBConnection.Close()
UpdateMessage.Text = "Record updated"
Catch
UpdateMessage.Text = "Update problem. Record not changed. " & SQLString
End Try
End If
End Sub
</SCRIPT>
<html>
<head>
<style>
.head {font-family:arial; font-size:12pt; font-weight:bold; width:560px;
border:outset 1 #F0F0F0; padding:2pt; background-color:#990000;
color:#FFFFFF; text-align:center}
.box {font-family:arial; font-size:8pt; line-height:9pt; width:200px;
height:20px; overflow:auto}
.right {text-align:right}
.center {text-align:center}
table {font-family:arial; font-size:8pt; line-height:9pt; width:560px;
background-color:#F9F9F9; border-collapse:collapse}
th {font-family:arial; font-size:8pt; line-height:14pt;
font-weight:bold; text-align:center; vertical-align:bottom;
background-color:#990000; color:#FFFFFF}
td {font-family:arial; font-size:8pt; line-height:9pt;
vertical-align:top}
</style>
</head>
<body>
<form runat="server">
<div class="head">Project Update</div>
<table id="UpdateTable" border="1" rules="rows">
<tr>
<th> Project Code: </th>
<td><asp:DropDownList id="ProjectCode" runat="server"/>
<asp:Button Text="Select" OnClick="SelectRecord" runat="server"/>
</td>
<td></td>
</tr>
<tr>
<th> Lecturer Name: </th>
<td><asp:TextBox id="LecturerName" runat="server"
Columns="40"
MaxLength="50"/></td>
<td><asp:Label id="LecturerNameMessage" runat="server"
ForeColor="#FF0000"
EnableViewState="False"/></td>
</tr>
<tr>
<th> Project Title: </th>
<td><asp:TextBox id="ProjectTitle" runat="server"
Columns="40"
MaxLength="50"/></td>
<td><asp:Label id="ProjectTitleMessage" runat="server"
ForeColor="#FF0000"
EnableViewState="False"/></td>
</tr>
<tr>
<th> Project Description: </th>
<td><asp:TextBox id="ProjectDescription" runat="server"
TextMode="MultiLine"
Columns="45"
rows="3"/></td>
<td><asp:Label id="ProjectDescriptionMessage" runat="server"
ForeColor="#FF0000"
EnableViewState="False"/></td>
</tr>
</asp:Panel>
</table>
<br>
<asp:Button id="UpdateButton" runat="server"
Text="Update Record"
Visible="False"
OnClick="UpdateRecord"/>
<asp:Label id="UpdateMessage" runat="server"
ForeColor="#FF0000"
EnableViewState="False"/>
</form>
</body>
</html>
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Aug 18, 2005
I'm trying to build a record update form and I'm
going off the "Build Your Own ASP.NET Website" book. I'm not getting
any compilation errors; the database just doesn't update.
void Update(Object s, EventArgs e) {
SqlConnection upConn = new SqlConnection(
"Server=****\netsdk; database=CLASSIFIEDS; User ID=****; Password=****;");
SqlCommand upCmd;
upCmd = new SqlCommand("UPDATE CLASSIFIEDUSER SET
ITEMHEADLINE=@ITEMHEADLINE, ITEMDESCRIPTION=@ITEMDESCRIPTION,
CONTACTNAME=@CONTACTNAME, EMAIL=@EMAIL, HOMEPHONE=@HOMEPHONE,
WORKPHONE=@WORKPHONE, CELLPHONE=@CELLPHONE, BUILDING=@BUILDING,
ROOM=@ROOM, PRICE=@PRICE WHERE ID=@ID", upConn);
upCmd.Parameters.Add("@ITEMHEADLINE", headline.Text);
upCmd.Parameters.Add("@ITEMDESCRIPTION", description.Text);
upCmd.Parameters.Add("@CONTACTNAME", contact.Text);
upCmd.Parameters.Add("@EMAIL", email.Text);
upCmd.Parameters.Add("@HOMEPHONE", home.Text);
upCmd.Parameters.Add("@WORKPHONE", work.Text);
upCmd.Parameters.Add("@CELLPHONE", cell.Text);
upCmd.Parameters.Add("@BUILDING", building.Text);
upCmd.Parameters.Add("@ROOM", room.Text);
upCmd.Parameters.Add("@PRICE", price.Text);
upCmd.Parameters.Add("@ID", Request.QueryString["id"]);
upConn.Open();
upCmd.ExecuteNonQuery();
upConn.Close();
Response.Redirect("preview.aspx?id=" + Request.QueryString["id"]);
}
The Response.Redirect works so I'm thinking there must be an SQL syntax error or something but I can't see it.
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Oct 11, 2006
Hello
I am happy with my mySQL install. I can quite happily created tables and fill them with initial data using mySQL Client
What I want to do now is via a web browser be able to add data to various tables etc. I need to make the web entering part of it as simple as possible for the users.
Cheers
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Jun 27, 2007
Although the codes get correctly compiled and executed the tables on the database are not getting updated. I also used the execute sql command manually but it also doesnt work.
:-(
What to do?
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Apr 3, 2006
I recently converted a program I made in C# from Access to Sql Server Express and I noticed something odd.
Anytime I update or insert data into the database, it only sticks around until the program closes. I can insert new records but as soon as the program quits, the inserts are gone.
Is this a bug or is there something else I need to do?
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Jul 22, 2007
I am having the oddest problem. I can update the data in the dataset, but when I use the update command, or try to do a update manually it will not save the values back to the database.
public void insrtnewtime()
{
int begintime = 00;
int endtime = 23;
int countr;
int _minz;
do
{
begintime = begintime + 1;
string string_begintime_representation = begintime.ToString("00");
//now I have a valid string representations
int _year = 2007;
int _month = 1;
int _day = 1;
int _hour = int.Parse(string_begintime_representation);
_minz = 00;
//need to account for 60 minutes
do
{
//now I need to get a real nice representation to be shown for the visual display
DateTime temptime = new DateTime(_year, _month, _day, _hour, _minz, 0);
//Now I need to strip out just the time, and send it to my stored proc
string stringnewtime_rep_visual = temptime.ToString("t");
string stringnewtime_rep_visual24 = temptime.ToString("HH:mm");
this.tbl_strt_tmesTableAdapter.insrt_strt_times(stringnewtime_rep_visual24, stringnewtime_rep_visual);
_minz += 5;
}
while (_minz < 60);
countr = begintime;
} while (countr < endtime);
this.tbl_strt_tmesTableAdapter.Fill(this.lesson_plannerDataSet.tbl_strt_tmes);
try
{
tbl_strt_tmesTableAdapter.Update(lesson_plannerDataSet.tbl_strt_tmes);//this should save the values
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
the table adapter update, should send the values to the database, but for some reason, it is not. i can see the existing values from the database, along with my new values that i added in my loop, but those values are not being sent to the database when I invoke the update command on the data adapter.
Any help will be greatly appreciated. I am making this program for my wife who is a school teacher.
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Dec 14, 2006
Hello again!I think what I need to do should be simple, but it is proving difficult.I am displaying a page with data drawn from three different SQL Server tables. Most of the fields on the page correspond to fields in one of the three tables, and these fields can be updated by the user. I then want to propagate these updates to SQL Server, refill the DataSet, and rebind.What I'm currently doing is basically this. I've set up a separate SqlCommand for this update. I have a ParameterCollection defined for this SqlCommand that includes the key field to be used in my WHERE clause and all the fields I want to update.When the user clicks on the [Save Customer Review] button, I (1) set the values of the parameters to the values of the corresponding screen fields, in most instances using one of the Convert methods so the data being assigned to the parameter has the correct type; (2) open an SqlConnection; (3) do SqlCommand1.ExecuteNonQuery(); (4) close the SqlConnection; (5) fill the DataSet; (6) bind.I've experienced multiple kinds of failure in this process, but the primary kinds of failure I've experienced are these:- The one value I'm actually updating (a text field) doesn't get updated on the database. No other fields are touched.- Two fields with Int values (SQL Server shows them as length 4; does that correspond to Int32?) are set to NULL.- The ExecuteNonQuery complains that I'm not supplying a value for the one field that is type DateTime. (In the SQL Server database, this field is permitted to be NULL, and in the record I'm playing with, it is in fact NULL. However, since TextBox.Value is of type String, I'm having to set it to Nothing [Visual Basic] if the text box is blank.)One thing I don't like about this is that I can't see what values the parameters are taking on as I do my processing, even in the debugger. At least I don't know of any way to examine or watch them. One reason this bothers me is that I have a rather strong suspicion that there's something wrong with the way I've set up the parameters, but I can't tell what's happening to them to confirm that, and I also can't see the SQL that's being generated (or can I?).Any thoughts?Thanks,TimPS Be gentle, please -- this is my first Web application. :-)
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Apr 25, 2007
hi,
I have a problem with updating a row in my database. I don't know how to update and i need help.
I have a form where the users select a category and a sub category to enter a message.
I have two dropdown lists, one is for selecting the category and the other is for the sub-category.
In my database for the categories and the sub-categories, i have a variable (Quantity) where i keep the quantity for each table.
I just want to be able to increment this variable by 1 (for the selected category and sub-category) when a user enter a new message...
The insert procedure is working well and have no problem with it.
I use VWD 2005 Express with SQL 2005 express and i code in VB.HELP!!!!!
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Sep 4, 2007
Hi GuysI am facing a problem while updating a DataTable to database using sqldataadapter.In my application I am fetching a dataTable from Database and filling values into textboxes on the UI.User has given facility to change or add new texboxes (new row) on the fly .(Textboxes on the UI are like in a row(tr) having two textboxes in each row.)I am again then converting a new (empty) datatable from scrap and filling its rows with the value of textboxes on submit button event.The datatable which I have created has the same schema as the database table.Now what I want here is that changed value should be reflected to the already existed rows in database and only new rows should be inserted.I am using a SQLDataAdapter having two sqlcommands , one for update with update procedure name and parameter mapping and another for insert with parameter mapping.But SqlDataAdapter is inserting fresh new rows all the time in the database table not updating the older one.Please help me in the matterThanks & RegardsVishal Sharma
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Jan 27, 2008
Hello, i currently have a gridview component displaying data from a SQLSERVER2005 database. I have created an 'edit' hyperlink on each record so that when pressed, the primary key of a record is sent in the querystring to another page when pressed. example http://localhost/Prog/EditAppointment.aspx?AppointmentId=1
In the edit page, i have dragged and dropped a sqldatasource that contains the select and update statements. i would now like to use textboxes and dropdowns to display the data for the particular record selected (in this case appointmentid=1). however i dont want to use a formview or automated component, just to drag and drop the textboxes myself. how do i bind the textboxes in the HTML code to the data from the select statement? My current select parameters look as follows.
<SelectParameters>
<asp:QueryStringParameter Name="AppointmentId" QueryStringField="AppointmentId" Type="Int32" />
<asp:ControlParameter ControlID="Textbox1" Name="PatientNo" PropertyName="Text" Type="String" />
</SelectParameters>
Perhaps there is an error in my select parameters or does the problem lay elsewhere? Any help would be appreicated.
Thanks,
James.
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Feb 20, 2008
Hello,I'm successfully using SqlDatSource to read data from SQL Server on a networked machine. Obviously I'd like to be able to update, edit or delete data, but the 'Advanced Sql Generation Options' in the SqlDatSource are greyed out.The result is that when I try and edit, update or delete I get this message Updating is not supported by data source 'SqlDataSourceDetails' unless
UpdateCommand is specified. Which makes sense because the options havn't been specified.I'm thinking this is probably a server side permissions issue but I've been through everything I can see and am now basically stuck.Any help would be appreciated Many thanks
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Feb 26, 2008
I have a Visual Basic Windows Project and am connecting to an SQL database. I drop a few of the tables from a DataSet onto a Windows form, and I want to scroll through (using the bindingnavigatror) and subsequently save the data if I decide to make changes to it. However, when I click on the save button it doesn't do anything. From the code, the save button is supposed to run this:
Code:
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Aug 7, 2006
First post here, hi to everyone.
Is it possible to update rows in a table while users are working on that table or do I have to throw them out? Thanks for the help!
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Jul 23, 2005
I'm taking over an SQL Serverdatabase which is often updatedwith data from an Access database.Knowing little about either, thissimple task has become a challenge.I'm told that the previous personused to type some simple SQLcommands and this would updatethe SQL server database but thecommands have been lost and theprevious person is unavailable.The Access database has exactlythe same column names as the SQL-server databaseand it is something simplelike:Control ID Phone Name Address1 Address2Does anyone know the SQL commandsto do this kind of SQL server database update from theabove mentioned Access database?The previous person left an app which connectsthe two databases and leaves a placewhere the SQL commands are to be typed.ThanksTAK
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Jun 12, 2015
No error is thrown, but the update is not made?  Possibly due to the dreaded inline sql being used?  The data structure for these 2 servers is horrific (but that is a story in itself).  The current structure (which needs immediate change) is each employee all 10 of them, have their own database.  If the userid is  6 or higher they are on server2 if the userid is 5 or below they are on server1.  Then they each have their own table that stores the data.  (A story for another day, but def needs overhaul).  However, here is the sql -- what needs to be altered to work with the current data structure and still get the updates needed?  Or we can scratch the update statements entirely if we can get the correct counts needed.
Declare
@employeeID varchar(50)
,@managerID varchar(50)
,@sql varchar(Max)
,@employee varchar(max)
,@itemsold varchar(max)
[Code] ....
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Apr 12, 2008
I have a SqlExpress DB on my server. I have a remote copy for security/backup reasons. Because the DB file(and .bak file) is about 2 Gb, it take a while to copy the whole thing to the remote machine. I believe there is a way to use the log file to simply update my remote copy ratherr than copying whole files, but I don't know what this process is called to research it. I have Brust's book on Sql Programming, but I have not found what I am looking for in there. Can anyone tell me where I should be looking and what this process is called?
thanks,
Steve
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